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How do mRNA vaccines stimulate the immune system compared to traditional vaccines?

• mRNA vaccines introduce a weakened virus, while traditional vaccines provide instructions for viral proteins.

• mRNA vaccines provide instructions for cells to produce viral proteins, while traditional vaccines introduce a weakened or inactive virus.

• mRNA vaccines directly attack the virus, while traditional vaccines train the immune system.

• mRNA vaccines suppress the immune system, while traditional vaccines activate it.

What is a key structural difference between DNA and mRNA?

• DNA is a single-stranded molecule, while mRNA is a double helix.

• DNA contains the base Uracil, while mRNA contains Thymine.

• DNA is a double-stranded helix, while mRNA is typically a single-stranded molecule.

• DNA is always shorter than mRNA.

In eukaryotic cells, where is DNA typically stored, and what is the role of mRNA in relation to protein synthesis?

• DNA is stored in the cytoplasm, and mRNA carries instructions to the nucleus.

• DNA is stored in the nucleus, and mRNA carries instructions from the nucleus to protein-building structures outside.

• DNA is stored in the mitochondria, and mRNA helps repair damaged DNA.

• DNA is stored in ribosomes, and mRNA directly builds proteins.

What are the three sequential steps of transcription?

• Elongation, Initiation, Termination

• Initiation, Elongation, Termination

• Termination, Elongation, Initiation

• Initiation, Termination, Elongation

What is the primary function of splicing during mRNA processing?

• To add a protective cap to the mRNA molecule.

• To remove non-coding segments from the mRNA.

• To duplicate the mRNA sequence for multiple proteins.

• To transport the mRNA from the nucleus to the cytoplasm.

Which sequence correctly represents the flow of genetic information according to the Central Dogma?

• Protein → RNA → DNA

• RNA → DNA → Protein

• DNA → RNA → Protein

• DNA → Protein → RNA

What was Francis Crick's specific hypothesis regarding the information in proteins?

• Information in proteins can be used to create DNA, RNA, or other proteins.

• Proteins can transfer their information back to DNA.

• Information in proteins cannot be used to make DNA, RNA, or more proteins.

• Proteins are the primary carriers of genetic information.

What is the significance of alternative splicing in gene expression?

• It ensures that only one type of protein is produced from each gene.

• It allows a single gene to produce multiple different protein products.

• It primarily functions to repair damaged mRNA molecules.

• It is a process exclusive to simple organisms like yeast.